The invention relates to a thin glass tempering treatment technology, and in particular relates to fused salt for thin glass chemical tempering and a production process thereof. The main component of the fused salt is KNO3, and the auxiliary component is KCl, K2CO3, KSb(OH)6 and gamma-Al2O3, the warming speed of a pre-heating furnace in the production process is 5+/-0.5 DEG C per minute, heat preservation is performed for 30+/-5 minutes after the temperature is raised to 350+/-5 DEG C, and then the glass is placed in the fused salt so as to be subjected to the ion exchange; the glass subjected to the ion exchange is placed in an annealing furnace so as to be cooled, and the temperature of the annealing furnace is 300+/-5 DEG.C; a power source is turned off after the glass is placed therein, so as to slowly cool to 50+/-5 DEG.C, and then the glass is taken out so as to be cleaned, dried and packaged. The surface stress of the normal soda lime silica glass produced by the invention can achieve 650MPa and more, the stress layer depth can achieve 23microns and more; the surface stress of alkaline alumina silicate glass can achieve 850MPa and more, and the stress layer depth can achieve 40 microns and more.

Ion exchange process for thin glass chemical tempering and fused salt

The invention discloses a chemical tempering method and a method for removing impurities in chemical tempering potassium nitrate molten salt. The method for removing impurities in chemical tempering potassium nitrate molten salt is used when the impurity removal is carried out for the first time as the chemical tempering effect cannot meet the production requirements at the beginning of the use of the potassium nitrate molten salt or after the potassium nitrate molten salt is used for a period of time. The method comprises the following steps: (1) keeping the tempering production operation temperature, and adding potassium carbonate into the molten salt to enable the potassium carbonate to be molten; (2) placing potassium silicate into a meshed container, adding the container with the potassium silicate into the molten salt, leaving to stand, and then taking out the container with the potassium silicate; (3) adding silicon dioxide into the molten salt, stirring, leaving to stand, and carrying out the chemical tempering production after the molten salt is clear; if the chemical tempering effect cannot meet the production requirements after the molten salt subjected to first-time impurity removal is used for a period of time, the steps (2) and (3) are repeated for second-time impurity removal. According to the invention, the process is simple, the operation is convenient, the chemical tempering effect of the molten salt subjected to impurity removal is similar to that of the molten salt at the original state, the service life of the molten salt is prolonged, and the production cost is reduced.

Chemical tempering method and method for removing impurities in chemical tempering potassium nitrate molten salt

The invention provides a high-strength chemically-strengthened glass, which belongs to the technical field of glass At least one side of the high-strength chemically-strengthened glass contains an ion exchange layer which contains divalent alkaline earth metal ions entering the high-strength chemically-strengthened glass in virtue of an ion exchange type chemical strengthening process; and the ion exchange layer also contains monovalent alkali metal ions entering the high-strength chemically-strengthened glass in virtue of the ion exchange type chemical strengthening process The invention also provides a strengthening method for a glass substrate The strengthening method comprises a step of placing a to-be-strengthened glass substrate in an ion exchange salt bath for ion exchange strengthening so as to obtain the high-strength chemically-strengthened glass The strengthening method for the glass substrate is simple to operate and convenient for industrial production The provided high-strength chemically-strengthened glass has greater surface pressure stress and ion exchange depth, so the glass has better strength and shock resistance

High-strength chemically-strengthened glass and glass strengthening method

The invention provides a photovoltaic glass for photovoltaic glass tiles, and a manufacturing process thereof. According to the present invention, the manufactured photovoltaic glass maintains the traditional beautiful architectural prototype of the traditional roof tile, has special abstract patterns such as bark patterns, can scatter light to ensure zero light pollution; and the used photovoltaic glass is beautiful and light-pollution-free, and the building roofing tile has functions of rain resistance, water discharge, wind resistance and the like so as to meet the photovoltaic glass urbanization requirements.

Photovoltaic glass for photovoltaic glass tiles, and manufacturing process thereof

The invention relates to an electrode slurry and a preparation method. The electrode slurry comprises, by weight, 13% to 65% of ball silver powders, 0 to 35% of flake silver powders, 3% to 16% of the glass powders and 19% to 49% of an organic binding agent, wherein the total content of the ball silver powders and the flake silver powders is 48% to 65%; The glass powders include the following components: 2 to 20wt% of ZnO, 1% to 15wt% B2O3, 20% to 60wt% of SiO2, 2% to 20wt% Na2O, 0 to 8wt% of Bi2O3, 2% to 8wt% of BaO, 0 to 10wt% Al2O3, 0 to 10wt% of CuO, and 0 to 8wt% SrO. The prepared electrode slutty has advantages of lead-free property, environment protection, low sintering temperature, and low total silver content.

Electrode slurry and preparation method

Method for removing potassium nitrate impurity ions on line in chemical tempering production

The invention belongs to the technical field of energy-saving glass, and discloses on-line coated glass with double functions of ultraviolet and infrared ray resistance, and a preparation method of the glass. According to the on-line coated glass with double functions of ultraviolet and infrared ray resistance, ceric oxide, titanium dioxide and cobaltous oxide as additives are added on the basis of basic component of a used glass substrate, subsequently the glass is molten, and the addition amounts of the ceric oxide, the titanium dioxide and the cobaltous oxide respectively account for 0.3-0.5%, 0.04-0.06% and 0.0001-0.0002% of the total mass of the basic component of the glass substrate. When the glass is drawn and formed, the glass substrate with the ultraviolet absorption function is coated with an infrared ray reflecting film layer with the infrared ray reflection function by using an on-line vapor deposition coating method. The coated glass disclosed by the invention has the double functions of ultraviolet absorption and infrared ray reflection, and the visible light transmissivity and the color of the glass are not affected.

On-line coated glass with double functions of ultraviolet and infrared ray resistance and preparation method thereof

Glass component for increasing photovoltaic transmittance of glass

The invention belongs to the technical field of special glass production and manufacturing and provides low-expansion lithium aluminum silicon transparent glass ceramic. The low-expansion lithium aluminum silicon transparent glass ceramic comprises the following basic ingredients by mass percentage: 6-9% of B2O3, 5-10% of K2O+Na2O, 56-64% of SiO2, 13-18% of Al2O3, 2-4% of Li2O, and 1-3.5% of MgO, wherein clarifiers and nucleation agents are added into the basic ingredients of the transparent nucleated glass; the clarifiers are Sb2O3 and CeO2; the additions of Sb2O3 and CeO2 are 1.6% and 0.35% respectively; the nucleation agents are TiO2 and ZrO2; and the additions of TiO2 and ZrO2 are 2.5% and 0.8% respectively. The transparent nucleated glass has excellent light transmittance and chemical stability, high strength and low expansion coefficient.

Zhou Li

Papers

Method for removing potassium nitrate impurity ions on line in chemical tempering production

On-line coated glass with double functions of ultraviolet and infrared ray resistance and preparation method thereof

Glass component for increasing photovoltaic transmittance of glass

Low-expansion lithium aluminum silicon transparent glass ceramic

Glass plate with high strain point for microcrystalline silicon solar cell substrate